RAD Data comm ASMi-52 manual Bit Error Rate Test Bert, Bert Patterns

Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics

Bit Error Rate Test (BERT)

It is possible to generate BERT+RLB or BERT (from both CO and CPE) in multiplexer and E1 and DTE Serial single units.

The BERT, RLB + BERT can be set only if there is a connection to the FE unit.

BERT Patterns

The following are the BERT test patterns that can be selected:

•2E15-1

•Mark

•Space

•Alternate

BERT has a possible Single Error injection only.

The BERT performance counters are as follows:

•Error bits – the total number of bit errors detected

•BERT total time – the total time the test is running in seconds

•Bert error time – the total number of seconds in which errors have been detected – in seconds

•BERT Sync Loss – the number of times Sync Loss was detected since BERT started to run

•BERT result – the number of error bits divided with the total number of data bits. This item holds 1 byte for the exponent and 2 bytes for the mantissa holding 1 byte before the period and 1 byte after the period

•BERT Sync Loss state – the Sync Status while BERT runs. The BERT Sync Loss state has the following values:

SyncLoss = 0

Sync = 1

•BERT sync run time – the total number of seconds in which sync have been detected – in seconds

•BERT total bits – the total number of bert bit.

To select the BERT patterns values for Local and Remote tests:

1.From the Diagnostics menu, select Local/Remote Test (Main menu > Monitoring > Local/Remote Test).

The Local/Remote Test menu is displayed (see Figure 6-23).

2.From the Local/Remote Test menu, select BERT.

The BERT menu is displayed.

ASMi-52 Ver. 2.5 Testing ASMi-52 6-17